Description
Lennox 46K69 Auto-Limit Switch is anessential part of any HVAC system. It’s like an automatic thermostat it is a device that controls the temperature to regulate the range of preset temperature is not allowed to exceed or fall below. The heating system is shut down by the switch when the temperature reaches the upper limit (180°F usually for the 46K69). On the other hand, the furnace turns on the moment when the temperature is below the lower limit (generally 150° F). Though this automated process is automatic, with it we have consistent comfort and energy savings from not going through unneccessary heating or cooling cycles. It is normally found in several Lennox HVAC equipment, including furnaces and heat pumps.
